Earth rotation

Dear group, Most vertically axled turbines at the northern hemisphere are intentionally made rotating clockwise due to the earth rotation. Have you any

Message 1 of 3
, May 1, 2000

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Dear group,
Most vertically axled turbines at the northern hemisphere are intentionally
made rotating clockwise due to the earth rotation. Have you any knowledge if
this really has any greater importance? At least, the influence should be
smaller the closer to the equator you come and of course, at the southern
hemisphere, the conditions would be opposite. Maybe this is strictly an
academical question. There is a name for this effect but I don´t recall it
for the moment.

Best wishes and mfG from Åke Stridh

Bösmöllan

Dear group, A special Thank you to Max Enfield and Martin Leahy for your very good answers to the topic of the possible influence of earth rotation on the

Message 2 of 3
, May 23, 2000

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Dear group,
A special Thank you to Max Enfield and Martin Leahy for your very good
answers to the topic of the possible influence of earth rotation on the
choice of direction for the revolution of vertically axled water turbines.
Maybe is the clockwise rotation chosen here on the northern hemisphere only
to be on the safe side or...?
Wellknown to many is the fact that when you pull the bottom plug in the sink
the outgoing water in most cases swings clockwise and this fact could very
well affect the choice. On the other hand, are the southern turbines really
running anticlockwise? This is a jeopardy question I should be glad to get
an answer to!

Best wishes and mfG from Åke S.

microhydro@dplus.net

Hello Ake - Yes you did get some great answeres! Years ago I asked the same question of Ignacy Czewicki - a retired (75 year old) turbine design engineer for

Message 3 of 3
, May 23, 2000

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Hello Ake -
Yes you did get some great answeres! Years ago I asked the same
question of Ignacy Czewicki - a retired (75 year old) turbine design
engineer for Voith Allis ( then Allis Chalmers - York Pa. - USA.)
Ignacy is one of the best. He trained under Zowski in Poland
before the war. Zowski designed the Leffel "Z" and the Smith "S"
turbines - He is famose amongst the crazys that care.
Anyway Ignacy looked at me like I was an Idiot and said this
effect made no difference to turbines.
Hey - it is an interesting question
Best Regards - Ron